Vibrator for movement-cure purposes.



No. 891,776. PATENTED JUNE 23, 1908.

J. B. KIRBY.,

VIBRATOR FOR MOVEMENT CURE PURPOSES. APPLICATION FILED JUNE-14,1907.

W/ T NESSE S x JNVLNTOR. W Jmea 5.1531427, GHQ W y A TTORNE K5 UNITED STATES PATENT OFFICE.

JAMES B. KIRBY, OF CLEVELAND, OHIO, ASSIGNOR TO LEWIS SANDS, OF CLEVELAND, OHIO.

VIBRATOB FOR MOVEMENT-CURE PURPOSES.

Specification of Letters Patent.

Patented June 23, 1908.

Application filed. June 14, 1907. Serial No. 378,888.

To all whom it may concern: Be it known that 1, JAMES B. KIRBY, a citizen of the United States, residing at Cleveland, in the county of Ouyahoga and State of Ohio, have invented certain new and useful Improvements in Vibrators for Movement- Cure Purposes, and do declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and ,use the same.

Mymventlon relates to vibrators for movement cure urposes, and the invention is embodied in t e construction and arrangement of parts substantially as herein shown and described and more particularly pointed out in the claims.

The general purpose of my invention is to produce a rotary vibratory movement by simple and durable means comprising in part a ielding'fulcrum support for the applicator a apted to minimize friction and wear.

A further object of the invention is incorporated in the shifting brush-holder ada ted to vary the speed of the motor and the v1 ratory movement of the applicator.

Other objects are embodied in other details of construction and as hereinafter more speeifically described.

In the accompanying drawings, Figure 1 is a central sectional view of the device complete, and Fig. 2 is a sectional view on line 2- 2, Fig. 1 without the applicator.- Fig. 3 is a cross section of the main body or casing on line 33, of Fig. 2 showim thc'brushholder and its rotatable relation with the commutator and the fields. section on line 9c:1c, Fig. 1 showing the locking ends of the spring fulcrum members for the applicator support, and Fi 5-is a cross section on line 2z, Fig. 1, s lowing the opposite fulcrum ends of said meinberssoclieted within said support.

Now, referring more particularly to the details of the invention, a two-part hollow body is shown which consists of a main section2 of semi-spherical shape, and an extended section 3 secured thereto by a pair of bits or screws 4. Main section 2 provides a housing support for an electrical motor, the licld cores 5 of which are clamped between shoulders 6 of the respective body sections when joined together.

Armature 7 of the motor is sup orted centrally between the. field cores by s aft ends 8 and 9 which have their respective bearings in Fig. 4 is a cross bushing 10 in main section 2, and in a cross piece 11 secured in place between the sections at their joint line and by belts or screws 4. The commutator 12 of armature 7 is arranged adjacent to bushing 10, and said bushin rotatably supports brush-holder 14 centrall between its ends and. said brushholder ias a pair of spring pressed carbon brushes 15 engaged with the commutator and confined within insulating tubes 16 mounted in the c lindrical brush holder ends 17. Brush-ho der 14 is made of spring metal and has a split sleeved bearing engagement with bushing 10 and also a flat bearing en age- 70 erned and a corresponding change in vibra..

tion is obtained. The frictional engagement between the brush-holder ends and stationary body section 2 firmly holds the brushholder in any position as set, and the ends are so disposed in respect to handle 22 of the device and in such'close relation thereto that the operator may conveniently operate the brush-holder with the thumb of the hand grasping the handle. Obviously, this arran ement of a speed regulating brushhol er constructed as a part of the device is of material advantage in giving treatments where the other hand of the operator may be otherwise employed.

The rotary movement of the motor armature is utilized to impart a gyratory and vibratory movement to applicator 23 and its sup orting member 24 by a crank stem 25 secured off. center at the end of armature shaft end 9 and inclined axially in respect thereto, but sleeved centrally and axially .within tubular supporting member 2'4. This result, of course, would not be obtain able without a fulcrum support for said member, and which, in this instance com- V members are further where the strain and wear is greatest. To this end, a air of fulcrum members 26 are rovided W 'ch are made of spring wire ,aving a straight middle portion 27 adapted to be rotatably mounted within bores 28 in the tubular end of body section 3 and which rovided with angularly bent fulerunr'en s 29 adapted to seat at their pointed or rounded extremities in sockets 30 in opposite'sides ,of sup orting member 24. Two such fulcrum mem ers 26 are provided, one at each side of the axial line of supporting member 24; and the fulcrum ends 29 thereof project toward each other and on the same central line to pro- 'vide a s ubstantially pin oint rocking bearing for supportingmem er 24. It will be noted also that the angular relation of fulcrum end 29 to the middle portion 27 is such that a lateral. pressure upon applicator 23 and its support 24 against the extremities of the fulcrum ends 29 will tend to rotate fulcrum members 26 at their middle portion 27 within bores 28. This tendency is spring counteracted by inner right angled ends 30 of members 26 which engage at 4 their free ends with lugs or stops 31 inte ral gage, an

with the inner wall of section 3. A yiel ing play in various directions is thereby given to the fulcrum support 24 which "reieves the strain on crank stem 25, although said stem is also preferably backed up by a s ring 32 mounted upon the right angleden of said' stern and bearing against the shaft to yieldingly hold said stem to its seat, and which provides for a limited amount of irregular movement of said stem and prevents rattling and noise. The spring wire for these parts is referably piano wire of suitable in ractice the construction as described has e'en found ;to stand up for indefinite periods without breaking and without appreciable wear and making an ideal fulcrum support, for the uses and pur.

poses set forth.

A screw cap 33 attached to the end of section 3 incloses the fulcrum members and provides a neat finish for the device atthis point. Any suitable oiling medium may be employed between the operating parts, but as ere shown self oiling felt washers 34 are used which are sleeved over tubular member 24 and pressed into a side slot 35 and into engagement with stem 25. The electrical connections between the fields and the brushes consist of flexible tinsel cords 36, and the line connections are 'made through the hollow handle 22.

What I claim 'is:

1. In vibrators, power means and an applicator member connected therewith having a fulcrum support comprised of spring wire.

2. In vibrators, an applicator having a fulcrum support of sprmg wire members centrically connected with the (indicator support to impart vibrations to t n applicater.

therewith, SL1( member having a yielding fulcrum sup ort adapted to play against both end and lateral pressures.

6.Invibrators,apowershafthavingacrank member, an applicator support operatively spring wire members having bent portions ada ted to provide fulcrum supports for members being mounted under spring tension to resist lateral pressure upon said applicator su port and its fulcrum members,

7. Inviiirators, an electric motor and a support therefor, combined with an appliby said motor, and a speed regulator or said motor mounted upon said motor support.

8. In vibrators, a motor and a sup ort ing'a vibratory support operatively engaged motor adjustably mounted upon said motor support.

9. In vibrators, an electric motor and an applicator having vibratory connection with said motor, in combination with a speed re ulator for said motor comprising a brushho lder having frictional supporting parts field of the motorto vary the motor.

10. In vibrators, an electric motor and an applicator having vibratory connection lator for said motor comprising a shifting brush-holder forming a part of said vibrator and rotatably mounted thereon relatively to the motor fields and motor commutator.

11. A vibrator having a hand support and a motor mounted thereon, and an ap )licator having vibratory connection with said motor,

said motor comprising a shifting brushholder forming a part of said vibrator and rotatably mounted in respect to the fields and comn'iutator of said motor and in relatively close working relation to said handle.

yieh-lingly mounted, and power means cc-l 12. In vibrators, a two-part body having 3. In vibrators, a power shaft having a sai applicator supports, and said spring cator having a vibratory support 0 erated.

therewith, incombination with a s peed regu-v member for ap licat-ors operatively engaged engaged with said crank member, a pair of I therefor,-eombined with an applicator avwith said motor, and a brush-holder for said and-rotatably supported in respect to the speed of the in combination with. a speed regulator for motor fields and cores therefor removably clamped between said parts, and a motor armature rotatably mounted upon said body and having vibratory imparting means connocted therewith.

13. In vibrators, a hollow body and an electric motor supported therein, and a shifting brush-holder for said motor comprising a rotatable spring support frictionally engaged with said body, in combinationvibratory support with an applicator and a water opcratively connected with for said a p p said motor.

14. in vibrators,

the motor and crank stem thereon, and a vibratory support for an applicator sleeved upon said crank stem,

of said support, and.

slots Within the sides self-oiling washers mounted within said slots. 15. In vibrators, the motor shaft and a crank stem havinga spring adapted to pro- 20 JAMES B. KIRBY.

Witnesses E. M. FISHER, RIB MosER. 

